Adding-machine.



C. N. McFARLAND.

lADDING MACHINE.

APPLICATION FILED SEPT. Il 1906.

1,150,949. PIendAug. 24,1915.

3 SHEETS-SHEET I.

g l I u 1 Y///////\ C. N. MCFARLAND.

ADDING MACHINE.

APPLICATION FILED SEPT. 1| 1906.

Patented Aug. 24, 1915.

3 SHEETS-SHEET 2.

C. N. MCFARLAND.

ADDING MACHINE.

APPLICATION FILED SEPT. 1. 190e.

1,150,949. Patented Aug. '24, 1915.

3 SHEETS-SHEET 3.

7%55565 libc/Z5? aww 4 2- @gw UNITED sTATEs PATENT oEErCE.

CHARLES N. McFARLAND, 0F WILKES-BARRE, PENNSYLVANIA, ASSIGNOR T0 BURROUGHS ADDING MACHINE COMPANY, 0F DETROIT, MICHIGAN, A COR- PORATION 0F MICHIGAN.

ADDING-MACHINE.

Specification of Letters Patent.

Patented Aug. 24, 1915.

To all whom t may concern Be it known 'that I, CHARLES N. MGFAR- LAND, a citizen of the United States, residing at Wilkes-Barre, Luzerne county, Pennsylvania, have invented certain new and useful Improvements in Adding-Machines, of which the following is a specification.

The present invention relates to machines for listing and adding such as provide for taking totals or sub-totals at the will of the operator, that is to say, either printing an amount representing the sum of all listed items leaving the accumulator at zero adjustment, or printing an amount representing the sum of listed items but preserving the accumulation so that subsequent items may be added thereto.

The invention is particularly designed for use in connection with the well-known Burroughs type of adding and listing machines such as disclosed in Patents Nos. 504,963 and 505,078, issued September 12, 1893, upon the inventions of William S. Burroughs. In this well-known Burroughs type of machine it is customary to bring about the printing of total amounts by the manipulation of a key which is so connected with mechanism within the machine casing that when depressed and held down during both the foi'- ward and rearward strokes of the operating handle the result first above mentioned will ensue, that is, a total will be printed and the accumulator left at Zero. "If, however, this key is released before the backward stroke of the operating handle commences, then the second result above mentioned will ensue, that is, the total will be printed but the accumulation will be preserved. In other Iwords a sub-total will be printed.

The principal object of the present invention is to provide for the taking of totals and sub-totals through the manipulation of independent means as for example by the depression of separate keys in contra-distinction to the manipulation of a single key. IVhile as before stated the invention is particularly designed for use with the Burroughs type of adding and listing machine 'yet it is not confined to machines having all of the characteristics of said Burroughs type but may be variously adapted.

lith the above mentioned and incidental objects in view the invention consists in certain novel features of construction and combinations of parts the essential elements whereof are recited in the appended claims and a preferred form of embodiment of which is specifically described hereinafter and illustrated in detail in the accompanying drawings.

Of these drawings Figure 1 represents in side elevation so much of a machine of the Burroughs type as is necessary for illustrating the adaptation of the present invention thereto, the casing of the machine being shown in section as well as certain cross shafts; Fig. 2 is a similar representation of some of the parts shown in Fig. 1 but on an enlarged scale and under a different adjustment, viz., that which obtains when a subtotal is being taken; Fig. 3 similarly represents the parts which appear in Fig. 2 but shows them under a different adjustment, viz., that which obtains when a grand total is being taken; and Figs. 4 and 5 represent details of the totaling devices in perspective.

Briefly describing those parts of a Burroughs machine which are more or less directly concerned with the operation of the present improvements or attachments, the keyboard is provided as usual with a series of keys arranged in rows representing the different denominations increasing from right to left and each row containing keys 291 representing the digits 1 to 9. Upon the depression or operation of any of the keys on the keyboard the sliding plate or plates 21a corresponding to the row or rows in which keys have been operated are moved rearwardly, with the result that the projection or lug 214a depending from such sliding bar will rock the bail composed of the universal bar or rod 102, extending transversely of the machine, and the parallel side arms 424 mounted on the shaft 400. This longitudinal movement of any one of the sliding bars 214 will operate to rock the detent 415 corresponding thereto and thereby release its corresponding rack 610, which is thereby permitted to move downwardly between the plates 210 a distance regulated by the particular one of the stop rods 270, which may have been operated, this movement or descent of the rack corresponding in value to the value of the particular key operated or depressed. The racks 610 correspond in number with the number of rows of keys and cooperate with a corresponding number of adding wheels 912 which are each provided with a pinion 916 meshing with said racks in amanner hereinafter explained. The racks are carried at the forward ends of a series of levers or bars G11 pivoted intermediate of their length on the main. transverse shaft (500 and carrying at -their rear ends the movable type 618. As is well known, the rearward or type bearing ends of the main levers, thatis those lever-scorresponding to the rows in which any keys may have been operated, are elevated, in theoperation of the machine, a distance correspending to the degree of descent of their respective racks 610, with. the result that inr the further operationl of the machine and the actuation of the printing. mechanism, the amount or. value indicated by the depressed keys will be printed uponthe paper.

on the platenand inthe subsequent. restora-v tion of the parts ofthe machine such amount or value willl be accumulated. on the adding wheels or dials.

Describing next` the usualztotalizing mech.-

an m employed for taking a total, either` a grand total, or a sub-total, the addingwheels are mounted in a swinging frame composed' essentially of the side or endnplates 91() which are mounted upon. the main. cross shaft 900. This adding wheel or. pinion rame is rocked forwardly and backwardly t the proper times in the operation of the machine, so as to cause engagement and disrement between the racks and their re spec ive pinions. 1n accumulating items, the pinion frame is swung forwardly upon the initial movement ofthe main shaft 300 of the machine and the racks, that. is the racks corresponding to the particular. keys which have beeiroperated, are permitted to.

descend while out of. meshv with their pinions. Upon the restoring movement, of thc parts of the machine and just before the racks begin their upward movement, the pinion frame is swung rearwardly and the pinions put into mesh with their. respective racks, with the result that an amount or value is transferred to thepinions whose racks have been operated,v such amount ory value corresponding tothe value or amount set up on thev keyboard. Each item or amount is thus added or accumulated on the pinions and wheels. In a Burroughs machine, this rocking movement of the pinion frame is brought about" throughithe medium of the bifurcated pitman 914: operatively connected te the three-armed lever or plate 9123. which is itself rocked by means of the .rocking arm or lever 5313 secured to the rock shaft 800 of the machine. As is well known, the lever 913 is rocked through the medium of the wipe plate 821 pivoted on one of the arms of the rocking lever S13 and arranged to cooperate with the pins or studs 961 and 961 on the lever 913.

The arms or forks` of the pitman cooperate with the pinion frame 910 for rocking the latter in the well known way and for the purposes above stated and it will suflice to say that upon the initial movement or rocking of the main shaft 300, the pitman 914 is moved forwardly, that is to the right in Fig. 1, with the result that the pinion f ame 910, through contact of one of the arms of the pitman with the stud 958 will be rocked forwardly, but upon the restoring movement of the main shaft and of the rock shaft S09, the pitman will be reciprocated in the opposite direction, carrying the pinion frame with it and.` causing. its pinionsto l again. engage with their respective racks for the purpose of accumulatinglthe amounts orv values represented by those racks which have been operated; Heretofore,.in taking. a total, a total key or buttonhas been employed for the purposeof controllingthe movements of the totalizing mechanism described, such total key or button having been connected with thepitman 91%', through the medium of the link- 911, so that when the total key or hutton wasoperated or, depressed the pitman 91st. wasremoved fromits operating connection with the pinion frame-910` through the medium of the stud or pin 959#u with the result that upon the initialmovement of the main shaftv of` the machine and the descent of the operated racksthe pinions would remain in mesh with their racks, and the latter would descend. distances corresponding to the accumulation or total indicated by the adding wheels,and after such total had been printed, the pinion frame would be swung forwardly, thereby disengaging the pinions from their racks and permitting the latter to be restored to normal. position and leaving `the adding wheels` at their reset or .i/,ero position.l Upon the completion of the opera tion ofthe machine the pinion frame is swung rearwardly to its normal position.

The totalizing operation just referred to if;

now. be re-transferred to the pinions and j,

their adding wheels.

In the operationof taking a total an arm 227` secured on the transverse shaft T20-t (which arm has heretofore been made in the form of a bell c ank connected with the fj total key) was moved or rocked rearwardly as to its lower end for the purpose of reciprocating the link 216 which, together with a similar link on the right-hand side of the machine carries the transverse or universal rod 209 serving the purpose of rockying the series of detents 415 and thereby releasing all of the racks.

It will be understood that when either eX- tracting a total or a sub-total the stopping of racks in their downward movement comes about through the encounter of the ordinary transfer pins or projections of the registering wheels with the upper sides or abrupt shoulders of laterally extending portions of the regular transfer pawls, which thus serve as zero stops.

l The parts which have thus far been designated are such as are well-known in the Burroughs type of machine in extensive use at the present time. Coming to the parts which are supplied to carry out the present invention the reference letter Z) designates a sub-total key which stands above the top of the machine casing alongside of the lefthand row or bank of amount keys at a position sufficiently removed from the total key 293 to provide for free, independent manipulation of the two keys, the sub-total key being in the present instance nearer the back of the Ymachine than the total key. This sub-total key has a stem 0 sliding through a slot in the top of the casing and springing from one arm d ofA a bellv crank lever pivoted at e beneath the Ykeyboard and normally drawn upward by spring connected to its other arm g and to a fixed part of the framework, said spring thus serving to normally hold the sub-total key elevated. Said arm g of the sub-total bell crank lever is coupled through a link 226 with the de pending arm It of another bell crank lever pivoted onl the shaft 204: and having a horizontally extending arm jextending alongside the total lever 227. The connection betweenthe link 226 and the depending arm of said last mentioned bell crank is by slot and pin so as to provide for movement of the lever independently of the link, the link having a longitudinal slot 7c which embraces the pivot stud connecting the lever arm t with the side-bar 216 of the bail which displaces the rack detents. This bail is drawn forward by a spring 216a which is connected at one end to a suitable part of the framework and at the opposite end to the arm L of the last mentioned bell crank whose horizontal arm is thus normally held elevated. This horizontally extending arm j of the last mentioned bell crank carries a substantially square pin m which projects through a slot n in the total lever 227 from which it will be seen that the sub-total key may be depressed a certain distance without afecting the total key. Continued depression of the sub-total key will, however, result in depression of the total key lever 227 andy through the medium of the link 911 depression of the pitman 9141 sufficiently to prevent disengagement of the pinions 916 from the.

racks 610 during the forward stroke of the operating handle but not sufficiently to bring said pitman into coperative relation with the lower pin 958 of theregister frame. In consequence the return or backward stroke of the operating handle is not accompanied by disengagement of the accumulator vpinions from their racks as would be the case when the pitman 914 is thrust downwardly to the limit of its movement and so held during both forwardand backward strokes of the operating handle or lever. Thus it will be seen that depression of the sub-total key causes the accumulator pinions to remain in mesh with their actuating racks during the entire operation of the machine and consequently any accumulation will be preserved, the accumulator pinions being restored to exactly the same positions that they occupied when the operation started. On the other hand depression of the total key 293 and holding the same down during the back stroke as well as the forward stroke of the operating handle results as heretofore in clearing the accumulator or leaving the same at zero adjustment after the total has been set up and printed.

With such an arrangement as above described it is desirable to lock the total and sub-total keys as the machine starts its operation after either one of these keys has been depressed, as also to prevent operation of either total or sub-total key during ite1nizing operations of the machine. To this end a lever 0 is pivoted intermediate its ends upon a stud 79 and drawn forward as to its upper arm by a spring ,p which normally presses a stud r/ at the lower end of said lever against the rocking arm or lever 818. It will be seen that as soon as the latter starts rearwardly this lever 0 will be caused to rock-rearwardly as to its lower arm and forwardly as to its upper arm. The latter extends upwardly in rear of the pin Im and is formed with a lug m which normally stands just in rear of and below the said pin m, so as to pass under the same when the lever 0 so rocks in item printing and accumulating operations of the machine. When, however, the sub-total key b is depressed and the pin m correspondingly lowered such rocking of the lever o results in its lug fm. passing above said pin m as shown in Fig. 2 thereby locking down the sub-total key as soon as the machine starts to operate and holding it locked down until the end of the machines operation, when the rocking arm 813 comes back to normal. The upper arm of the lever 0 carries a supplemental arm s pivotally connected with it at s and having below its pivot a lateral lip 82 extending in front of the forward edge of the lever o. The spring 79 hereinbefore mentioned as drawing the upper arm of the lever 0 forwardly is not connected directly to said lever butis connected to thel supplemental arm s above' the latters pivot. Normally the lip s2 contacts with the forward edge of the leverI o and the spring" thus serves to rock the lever in the manner described. The supplemental arm s extends up between the square pin m' and asimilar pin 1' on the total key lever 227 and is formed with a lug 7" which in an itemizing' operation of the machinev passes under said pin i when the lever 0 rocks in the mannerv passing over the pin 'm as before described but the lug-1" contacting with the pin r and causing the supplemental. arm s to turn on its pivotal connection with the lever o as the latter is drawn forward by the spring 79. Depression ofthe total key however, moves the lever 227 farther downward. Consequently when a grand total'is to be taken the pin i" moves below the lug i" and in the subsequent operation of the machine this lug will pass above saidpin as shown in Fig. 3 and thus lock the total key in its depressed position and hold it there until the very close of the machines operation.

For the purpose of preventing depression of either the total or the sub-total key after any amount key has been dfiipressed and until all amount keys have been restored to normal position, the upper end of the sidebar l2-i is arranged to pass below a pin t of the bell crank t--j whenever the bail of which .'aid side-bar s'fQ-it forms a part is moved rearwardly by the depression of an amount key. lVh-en either the total or the sub-total key is depressed this pin t will pass down in rear of the upper endl of said side bar 2l and thus prevent depression of an amount key as the latter cannot take place without moving rearwardly the said bail of which side-bar +LE-Llforms a part. Thus amount keys and total keys cannot be simultaneously depressed.

Vilhile the particular construction here shown and described is very well calculated to fulfil the objects primarily stated yet it is to be understood that the invention may be carried out in dilferent ways. Conse- ,|uently in the claims which follow, essential elements are recited without limitation to details of the construction.

lVhat is claimed is:

l. ln a machine of the class described, the combination with the register actuating racks and the register normally in engagement with said racks, of the main shaft,

connections from the main shaft adapted to normally disengage and rengage the register and racks while accumulating amounts, means controlling'said connections for taking'the totals, and independent means for rendering said connections inoperative to disengage the register from the racks While takingsub-totals. l

2. In' a machine ofthe class described, the combination with the register actuating racks 'andthe register normally in engagement with said racks, of the main shaft, connections from the main shaft adapted to normally disengage and rengage the registerand racks while accumulating amounts, means controlling said connections for taking the totals, and a key which when pressed inv renders said connections inoperative to disengage the register' fromA the racks while taking sub-totals.

3. In a machine of the character described, the combination with listing and accumulating' means, controlling connections and means manipulative to establish a totaling' adjustment; of independently manipulative-means for effecting modified adjustment thereof for sub-totaling purposes; and devices' for locking said connections under either a dj ustment.

4.-. In a machine of the character described, the combination with listing and accumulating means, controlling connections and means manipulative to establish a totaling adjustment; of independently manipulative means for effecting modified adjustment thereof for sub-totaling purposes; and devices for locking said connections under either adjustment, with provisions for preventing manipulation of either means during a listing and accumulating operation.

5. In a machine of the character described, the combination of listing and accumulating means with provision for varying adjustment-s to set up, print and accumulate items or to set up and print the accumulation; a manipulative device whose full movement causes the accumulating means to remain in its Zero condition after the printing of a total; separate manipulative means for moving the said manipulative device to such limited extent as to permit reaccumulation after total printing, and devices for locking the first mentioned manipulative device under either extent of movement.

6. In a machine of the character described, the combination of listing and accumulating means with provision for varying adjustments to set up, print and accumulate items or to set up and print the accumulation; a manipulative device whose full movement causes the accumulating means to remain in its Zero condition after the printing of a total; separate manipulative means for moving the said manipulalOO -manipulation of either said manipulative device or said separate manipulative means v during a listing and accumulating operation.

lso

7. In a machine of the class described, the combination With the register actuating racks and the register normally in engagement With said racks, of the main shaft, connections from the main shaft adapted to normally disengage and rengage the register and racksv While accumulating amounts, a key for adjusting said connections to reverse the order of disengagement and reengagement of the register and racks for taking totals, a separate key for limiting such adjustment to prevent any disengagement While taking sub-totals, and devices preventing manipulation of either key during a listing and accumulating operation, together with provisions also under control of the main shaft to keep the key connections set during either av total or sub-totaling operation.

8. In a ymachine of the character described, the combination of differentially movable type-carrying racks, impression and restoring means therefor, an accumulator normally engaged with the racks, a rocking support for said accumulator, a pitman for engaging said support on opposite sides of its pivot and normally engaged therewith on one side only thereof, independently manipulative keys, connections between said keys and said pitman With provisions for lost motion as to one key, a prime mover, and devices for locking the key connections in set condition upon manipulation of either key followed by operation of the prime 9. In a machine of the character described, the combination with listing and accumulating means, and means manipulativeto establish a totaling adjustment; of independently manipulative means for effecting the same adjustment but in modified ydegree for sub-totaling purposes. 10. In a machine of the character described, the combination With listing and accumulating means, and means manipulative to establish a totaling adjustment; of independently manipulative means for limiting the extent of adjustment of the first mentioned manipulative means for sub-totaling. j

11. In a machine of the character described, the combination of listing and accumulating means with provisions for varying adjustments to set up, print and accumulate items or to set up and print the accumulation; a manipulative device Whose full movement causes the accumulating means to retain its zero condition after the printing of a total; and separate manipulative means for moving the first mentioned means to such limited extent as to permit reaeeumulation after total printing.

12. In a machine of the class described, the combination with the register actuating racks and the register normally in engagement with said racks, of the main shaft, connections from the main shaft adapted to normally disengage and re'e'ngage the register and racks While accumulating amounts, means controlling said connections for taking the totals, and independent means for limiting such adjustment of said connections to prevent disengagement of the register from the racks While taking sub-totals.

13. In a machine of the class described, the combination With the register actuating racks and the register normally in engagement With said racks, of the main shaft, connections from the main shaft adapted to normally disengage and rengage the register and racks While accumulating amounts, means controlling said connections for taking the totals, and a key Which when pressed in limits the operation of said controlling means to prevent disengagement of the register from the racks While taking sub-totals. y 1-l-. In a machine of the class described, the combination with the register actuating racks and the register normally in engagement with said racks, of the main shaft, connections from .the main shaft adapted to normally disengage and reengage the register and racks While accumulating amounts, a key for adjusting said connections to reverse the order of disengagement and reengagement of the register and racks for taking totals, and a separate key for limiting such adjustment to prevent any disengagement While taking sub-totals.

15. In a machine of the character described the combination of differentiallyT movable type-carrying racks, impression and restoring means therefor, an accumulator normally engaged with the racks, a rocking support for said accumulator, a pitman for engaging said support on opposite sides of its pivot and normally engaged therewith on one side only thereof, means for disengaging said pitman from said support on that side of its pivot and positioning it for engagement therewith on the opposite side of said pivot, and independent means for disengaging said pitman on the one side of the supports pivot Without positioning it for engagement on the other side of the latter.

16. In a machine of the character described the combination of differentially movable type-carrying racks, impression and restoring means therefor, an accumulator normally engaged With the racks, a rocking support for said accumulator, a pitman for engaging said support on opposite sides of its pivot and normally engaged therewith on one side only thereof, a key for disengaging said pitman from said support on that side of its pivot and positioning it for engagement therewith on the opposite side of said pivot, and an independent key for disongaging said pitman on the one side of the supports pivot without positioning it for engagement on the other side of the latter.

l?. ln a machine of the character described, the combination of differentially movable type-carryingracks, impression and restoring means therefor, an accumulator normally engaged with the racks, a rocking support for said accumulator, a pitman for engaging said support on opposite sides of its pivot and normally engaged therewith on one side only thereof, independently manipulative keys and connections between said keys and said pitman with provisions for lost motion as to one key, substantially as and for the purpose described.

18. in a lmachine of the character described, the combination of differentially movable type-carrying racks, impression and restoring means therefor, an accumulator normally engaged with the racks, a rocking support for said accumulator, a pitman for engaging said support on opposite sides of its pivot and normally engaged therewith on one side only thereof, independently manipulative keys, a link connecting one of said keys with said pitman, and a lost motion connection between the other key and said link.

19. In a machine of the character described, the combination of differentially movable type-carrying racks, impression and restoring means therefor, an accumulator normally engaged with the racks, a rocking support for said accumulator, a pitman for engaging said support on opposite sides of its pivot and normally engaged therewith on one side only thereof, independently manipulatife key-levers, connections between said levers with lost motion, and a link connecting one of them with the pitman.

20. ln a machine of the class described, the combination with the register actuating racks and the register normally in engagement with said racks, of the main shaft, connections from the main shaft adapted to normally disengage and rengage the register and racks while accumulating amounts, means controlling said connections for taking the totals, independent means for rendering said connections inoperative to disengage the register from the racks while taking` sub-totals, detents maintaining the racks in normal position, and means for displacing said detents by both the total and sub-total controlling means.

2. lin a machine of the class described, `the combination with the register actuating 'both the total and sub-total controlling means.

22. In a machine ofthe class described, the combination with the register actuating racks and the register normally in engagement rwith said racks, of the main shaft,

connections 'from the main shaft adapted to normally disengagevand rengage vthe register and racks while accumulating amounts, means controlling said connections for taking the totals, a key which when pressed in limits the operation of said controlling means to lprevent, disengagement ,of Vthe register from the racks while taking sub-totals, detents maintaining the racks in normal position, and means for displacing said detents by both the total and subtotal controlling means.

23. ln a machine of the class described, the combination with the register actuating racks and the register normally in engagement with said racks, of the main shaft, connections from the .main shaft adapte-d to normally disengage and rengage ythe register and racks while accumulating amounts, a key for adjusting said connection-s to re- ,verse the yorder of disengagement and reengagement of the register and racks for taking` totals, a separate key for limiting such adjustment .to prevent any disengagement while taking sub-totals, detents maintaining the racks in normal ,position and means for displacing said detents yby both total and sub-total keys.

24. In a machine of lthe character described, the combination of differentially movable type-carrying racks, impression and restoring means therefor, an accumulator normally engaged with the racks, a` rocking support for said accumulator, a pitman for engaging said support on opposite sides of its pivot and normally engaged therewith on one side only thereof, independently manipulative keys, levers, ,connections between said levers with lost motion, a link connecting one of them with the pitman, detents maintaining the racks in :normal position, and means connected with the said key le- A vers for displacing said detents.

25. In a machine of the character described, the combination of differentially movable type-carrying 1acks, impression and restoring means therefor, an accumulator normally engaged with the racks, a rocking support for said accumulator, a pitman for engaging said support 0n opposite sides of its pivot and normally engaged therewith on one side only thereof, independently manipulative lreylevers, connections between said levers with lost motion, a link connecting one of them with the pitman, a locking lever for engaging one of said key-levers, and a reciprocating machine element normally restraining said locking lever.

26. In a machine of the character described, the combination of diferentially movable type-carrying racks, impression and restoring means therefor, an accumulator normally engaged with the racks, a rocking support for said accumulator, a pit man for engaging said support on opposite sides of its pivot and normally engaged therewith on one side only thereof, independently manipulative key-levers, connections between said levers with lost motion, a link connecting one of them with the pitman, a locking lever for engaging one of said key-levers, a locking arm pivotally mounted on said locking lever for engaging the other key-lever, and a reciprocating machine element normally restraining said locking lever.

CHARLES N. MCFARLAND.

Vitnesses JOSEPH D. LLOYD, JOHN MENOVSKY.

Copies of this patent may be obtained for iive cents each, by addressing the Commissioner of, Patents, Washington, D. C. 

